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Finding the Fourth Proportional to 534,620.92, 801,932.42 and 129,811.43

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Solution

The fourth proportional to 534,620.92, 801,932.42 and 129,811.43 is: 194,717.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,620.92 : 801,932.42 = 129,811.43 : x
  2. Step 2: Convert to fraction form
    534,620.92/801,932.42 = 129,811.43/x
  3. Step 3: Cross multiply
    534,620.92x = 801,932.42 × 129,811.43
  4. Step 4: Simplify right side
    534,620.92x = 104,099,990,193.90
  5. Step 5: Solve for x
    x = 104,099,990,193.90/534,620.92
  6. Step 6: Final answer
    x = 194,717.39

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.